Question re valve types?

Discussion in 'Hi-Fi and General Audio' started by Zylog, May 30, 2005.

  1. Zylog

    Zylog

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    Is anyone able to tell me what difference if any, there is between a 12AX7M and a 12AX7A valve.

    Thanks
     
    Zylog, May 30, 2005
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  2. Zylog

    Lord .

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    Following a quick Google, I think that 12AX7M is a 'Groove Tubes' Mullard reissue, hence the M.
     
    Lord, May 30, 2005
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  3. Zylog

    Zylog

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    Thank you.
     
    Zylog, May 30, 2005
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